Lightweight security tool Rated 5 out of 5 stars
This addon is a sweet idea: sites such as Google Search, Wikipedia, and YouTube offer encryption but don't usually ask the user for their preferences. Rather than adding https:// to the beginning of a URL for every session for a site, you can check the box and have your browser remember.
Found no bugs with this addon, it works great.
A technical rundown of what Strict-transport security is can be found at https://en.wikipedia.org/wiki/HTTP_Strict_Transport_Security